Ribboner



E. B. SOMERS May 6, 1930'.

RIBBONER Filed March 23, 1928 3 Sheets-Sheetl E. B. SOMERS- May 6, 1930.

RIBBONER Filed March 25, 1928 3 Sheets-Sheet 2 A May 6, 1.930. E B. sQMx-:Rs 1,757,147v

BBBBBBB ER Filed March 25, 1928 s sheets-sheet 5 Patented May 6, 1930 UNITED STATES PATENT OFFICE TION, F CAMDEN, NEW'JERSEY, Ai'COR-POLR'ATION OF NEW JERSEY Y 'RI'BBONERF Appnction meanarch 23, 192s. sei-iai No. 264,019. n n Y Y y The ribbonroll will of course be of dify My invention relates to reeling mechanisms for winding typewriter 'ribbons from larger rolls.

One of thepurposes of my invention is to provide simple and effective means to measure the lengthof ribbon wound, to give a signal when this length has been wound and to permit quick and easy variation in the Y setting of the length at which the signal is i@ to be given. Y

Further purposes will appear in thespeciication and inthe claims.

I have preferred to illustrate one structure only among a number in which my invention is mightbe embodied, selecting a form which is simple, practical, reliable and inexpensive and which at the same time well illustrates the principles involved. v

Figure 1 isa longitudinalsection correzo sponding to line 1 1 in Figure2.

line 2 2. v

Figure 3` is a section of-Figure 2 taken upon line 3 3.V Y j V Figures 4 and r5k are perspectiveviews showing parts seen in Figures 1 and 2. y

Figures 6 and 7 are fragmentaryenlarged sections kof the structure shown-.in Figures 1 and 2ta-ken upon line 6 6 of Figure'2 and s@ 7 7 of Figure 1*, respectively. Y

Inxthe drawings similar numerals indicate like parts.

MyD winding mechanism is convenientlyv mounted upon any suitable frame which is f here shown as comprising a base Vplate 10, hollow to hold part of the mechanism, and a top or cover 11, 11 made in two parts for convenience of access.

The reeling mechanism is most convenient` ly attached to a rigidly supported part of the case and the measuring mechanism is most conveniently supported from the'base, but,` these relations are not essential. As shown I attachl the ribbon roll support to the member 4.5i 11 by a bracket 12. The support itself is in the'form of a preferably stationary backing.

or braking member 13 and a projecting center pin 14 about which theroll 15 is adapted to turn as the ribbon 16 of the roll is "drawnV 501 fr'omit by rotation of the spool 17.

Vof different widths.

Figure 2 is a section yof Figure 1 taken upon Y Y faces.

ferent widths according `to the width of the ribbon used upon the typewriter which it is intended to fit, but all of these widths may be accommodated in the mechanismshown. y

In order to apply pressure to 4the sides of the roll so asrto give the'desired friction against unwinding I clampthe rol'l between the surface of braking member '13 and the surface of a' second braking member, cover 18. vrIhecover protects additionally against soilingofthe ribbon at the same time thatA it performs the clamping orbraking function.

1 It is quitev desirable that the vlona-king be resilient and that it be adaptable to ribbons n These aims are secured by recessing the cover'18 at .several points aboutits circumference as vat 19, 19, 192 in such a way that it may engage todiferentextents with lingers 2O which. are resilient vin a direction transverse tothe vbraking surends of springs' 21 whose inner'ends are rigidly fastened to lthe plateby any suitable Vmeans such -as by'strips 22P The' springs diverge from the plate at their outer ends to give the required resilience between the fingers landy any suitable' recess faces 23 on the cover.

v 'To'provide for variation of the set distance Ibetween, the two braking surfaces I ltherefore utilize a series of stepped faces 23, 23', 232i and 233 for engagement with spring fingers 20 so that the .attachment is varied bythe extent to vwhich the cover 18 is turned afterj engagement with the fingers begins. The'introductionto the first face 23 and the recess surfacesbetween successive faces are sloped as at 24 so as to make it possible con# venien-tly, to apply the cover against. the spring.v in any of the adjustedV positions by merely. passing-the cover openings19, 19', 192 'over the spring fingers andthen rotatingv the spring in a direction which would be clockwise as shown in. Figure 1 and counter clockwise asshown in Figure'.

In addition to the openingsleadingI to the stepped: surfaces 23,y 23', etc.,l the cover is cut `at 25l throughout aspace large enough to provide for. outward passage of the ribbon 16y Thefingers are located at the free.V

SOl

i from the rollin any of the positions to which kshown as a cone.

the cover has been turned.

As the ribbon passes out from the supporting mechanism it belts about a drum 26, supported to rotate .upon Aor about a stub shaft 27. It then passes between; a curved guide 28 and a guard 28 and thence into en agee mentwith tlie'spool 17 upon which it is eing wound.y The drum is interposed for the purpose of providing a'measureand indicator or alarm so as to permit preliminary settingl of the length of ribbon whichis being wound upon the spool.

The ribbon spool 17 is mounted upon a preferably rotatable shaft 29 which is sup- 'ported wholly from the one side of the spool by a fitting 30. This fitting `forms a bearing for the shaftif the shaft be rotatable. The shaft is surrounded by a gear 31 which re- Y volves about the shaft, at the same rate as a spool-driving abutment y 32. Gear 31 is driven by a gear 33 mounted upon a rotatable shaft 34 turned by crank 35 and handle 36. The shaft 29 .and drivingy shaft 34'are supported in the tting where they are retained by nuts 37, 38. The itting-isrheld to the casing in any suitable manner.`

The'shaft 29 is threaded at 39 to provide f or mounting upon it any suitable engaging device 40 and nut 41. vThe engaging` device is It should be of suitable form to center the spool 17 and to press the p spool against the abutment (disc) 42 which is driven by the gearing. i

The rotary abutment" 42 `is preferably so far the driver that it makes zlittle differencev whetherthe engaging device` 40 V(and, therefore, the shaft 29) rotate or not.

In order to provide for rapid mounting and removal of the spools, the nut41 issplit and,

coned at its inner end. Its coneface 43 enters a recess`44l within the engaging device 40. When the inner end is free from engagement of the Vcone with the walls of the `recess the sides of the nut separate and release the nutv from the thread permitting quickl removal of the nut and of the engaging device 40 so that the spool can be placed or withdrawn. A ribbon spool is placed over the free end of the spindle, the engaging device is put in place against it and the nut is passed over the shaft and its cone is pressed into contact with the engaging device. The ends ofthe nut will then be contracted upon the thread suitable post 50. The arm carries a. hammer 51 which strikes a bell 52 when the spring'-` retractedarm is released.

Concentric with gear 46 I mount a fixed indicator 53 upon which yard notations are marked in the reverse order ofthe direction zero point corresponding with the point at whichthe projection 47 releases arm 48. As

a result if the gear V46 beiturned to anyfposif tion, such as that in which 'the indicator is opposite the number 10 it would show that a corresponding number of yards-10- of movementof the Gear, beginning fromv a i would be woundv upon the spool before the alarm would strike.l

ln order that the 'counting4 mechanism may p be set'to give an alarm for any desired num-` ber of yards to be wound upon the spool, the

mount for the gear 46 is so. arranged that it can be swung away from the face gear 45 to permit turning of the gear 46 to any desired angular position to correspond with any desired number of yards to be Wound before..y

signal is given of completion of this extent of winding.

VVThe mechanism by which the gear 46 can betilted away from fa'cegeai 45 is extremely..

simple. f-TheAspindle 54y upon which the gear 46 turns is carried byan aijin'55 pivoted at 56 and Vpressed by spring 57ftoward the n facegear. lVithdr'a-wal from the-*face gear means merely movement of the spindle 54 in a clockwise direction in Figure 6 against the strength ofthe spring' r t would of course be objectionable to have ,the strength of, spring V57 normally pressing a the gearV 46 against the face gear 45 as this would cause excessive depth of engagement of the gears or excessive friction of the outer faces'of the teeth upongear 46 againstthe suppor'trupon which the face gear is mounted. This objec-v tion is avoided Vby the kuse of av screw 58 threaded into the base 10Vand locked by a nut 59. The screw presses against an. abutmentV 60 carried by the arm 55,1whereby vthe swinging `movement 'of the gear can be stopped with ust the right amount of engagement be-` tween the gears. p e. Y

Inoperation, the gear 46 is drawn 'away from the face gear 45 wliile gear 46 is being' turned to bring the projection 47V opposite that number upon a scale 53 which represents the number of yards desired. VThe gear .46 is then released to engage withthe face gear.

Theribbon roll is mounted upon spindle 14 and is threaded beneath and about the drum. It is then turned upwardly over guidey 28 to the spool., The inked tape is fastened to the spool core and the ribbon is wound upon the spool until the bell rings, indicating the proper length of ribbon wound. The ribbon lis then cut, preferably between the guide 28 and the spool.` The completely wound ribbon and spool are then withdrawn.

In view of my invention anddisclosure va` riations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, t0

obtain part or all of the benefits of my in- Vention without copying the structure shown,-

and I, therefore, claim all such in so far as they fall within the reasonable spirit and scope of my invention. Y

Having thus described my Vinvention what I claim as new and desire torsecure by Letters Patent is: n

l. In mechanism for rewinding ribbon from a roll, a drum adapted to be rotated by the ribbon, a face gear carried by the drum, a gear engaging the face gear and springpressed against it and movable away Jfrom it Y to permit'withdrawal from its engagement and resetting of the gear, an alarm operated by movement of the Vgear and ixed indicating means cooperating with the gear to indicate the extent of ribbon to be Wound before operation of the alarm.

2. In mechanism for rewinding ribbon from a roll, a drum adapted to be rotated by the ribbon, a face gear carried by the drum, a gear engaging the face gear and springpressed against it, permitting withdrawal from its engagement and resetting of the gear, y Y an adjustable stop for limiting the depth of engagement of the second gear with the face gear, alarm and connections to the alarm operated by movementrof the second gear.

3. In mechanism for rewinding ribbon from a roll, a drum rotated by the material rewound, a gear rotating with the drum, an alarm, a gear operating with the alarm and connections between the two gea-rs, permitting disconnection and resetting of the gears to set oif the alarm with `different lengths of winding. Y

ELWARD B. VSOM'ERS. 

